Hey daydreamer! Don't stress too much, these reviews are usually fairly informal in my experience, although I suppose it varies! For my first year review I prepared a report that included a document outlining what I had been doing that year (including details of teaching etc), a detailed proposal for my PhD study, my literature review, the ethics form that I had submitted to the NHS, and a plan for the rest of my PhD. It depends what you have been doing in your first year really, but they just need to see that you have been doing something productive with your time and have got a reasonable idea of what you'll be doing for the next couple of years. If you have data already then you can include a summary of that, but I didn't have data on time for my first review and it wasn't a problem. You'll be fine! Best, KB